Language: en
Meaning: (idiomatic,military)Anemergencymaneuverby asubmarinein which it suddenlydescends, especially to considerabledepth, usually in order to escape anattackor avoid acollision.2000March 19, Charles M. Cooke, “Letters: Loose Lips, Sinking Ships”, inWashington Post, retrieved25 October 2015:As thecrash divebegan at 1:50 p.m., the overboard ventilation valve had not been closed, which resulted in tons of water flooding the submarine.; Arapiddescentby a person or thing, ending in a violent collision.1985October 4,Mel Gussow, “Theater: Three by Sam Shepard”, inNew York Times, retrieved25 October 2015:In "Icarus's Mother," a skywriter salutes two girls on a beach with the message, "E=MC2," and then swirls into a deadlycrash dive.; (trampoline)Three quarters of a frontsomersault, beginning on the feet and landing on the back.1990,Trampolining: The Skills of the Game[1]:The next routine can be the same as Routine 7 but with thecrash divebeing replaced with a one-and-three-quarter front somersault tucked (with a tariff of 0.7), making the total tariff 4.8
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